970089 - long (infinite?) loop in a11y:FocusManager::ProcessFocusEvent

Status: RESOLVED DUPLICATE of bug 970005

(Core :: Disability Access APIs, defect)

Description

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

I've frequently hit infinite loops in Firefox, with the debugger placing me in

	xul.dll!mozilla::dom::Element::GetAttr(int aNameSpaceID, nsIAtom * aName, nsAString_internal & aResult) Line 1946	C++
 	xul.dll!mozilla::a11y::RelatedAccIterator::RelatedAccIterator(mozilla::a11y::DocAccessible * aDocument, nsIContent * aDependentContent, nsIAtom * aRelAttr) Line 88	C++
 	xul.dll!mozilla::a11y::FocusManager::ProcessFocusEvent(mozilla::a11y::AccEvent * aEvent) Line 314	C++
 	xul.dll!mozilla::a11y::EventQueue::ProcessEventQueue() Line 478	C++
 	xul.dll!mozilla::a11y::NotificationController::WillRefresh(mozilla::TimeStamp aTime) Line 273	C++
 	xul.dll!nsRefreshDriver::Tick(__int64 aNowEpoch, mozilla::TimeStamp aNowTime) Line 1079	C++
 	xul.dll!mozilla::RefreshDriverTimer::Tick() Line 160	C++

Trying to step out of the FocusManager::ProcessFocusEvent call results in a loop where breaking in is somewhere inside deeper code, or in PLDHash code.

I'm on Windows 8 (not 8.1), on a desktop, but with various tablet PC things enabled because I have a Leap Motion controller that can make use of the on-screen keyboard.  I had accessibility.win32.force_disabled set to true, but accessibility.force_disabled was 0.  I just set it to 1, but this is a bad experience -- remnants of bug 538530.

Comment 1

[Marco Zehe (:MarcoZ)]

Is this similar to bug 970005?

Comment 2

[alexander :surkov (:asurkov)]

(In reply to Marco Zehe (:MarcoZ) from comment #1)
> Is this similar to bug 970005?

yes, also caused by bug 933322